Temporary speed limits in force on the M27. No closures right now.
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Reported now
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Speed limits
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Planned
Overhead sign · M27
J11 7 mins
J12 16 mins
M27 traffic update
What’s the traffic like on the M27 right now?
The M27 is running normally. Nothing is reported in the National Highways feed right now.
Updated at 07:22 · refreshes every 5 min
Accidents
Is there an accident on the M27?
No. Nothing unplanned is reported on the M27 right now: no collisions, breakdowns or obstructions in the National Highways feed. Nothing unplanned has been reported and cleared on the M27 since midnight either.
Powered by National Highways’ Transport Data Feeds
Typical weekday
When the M27 clogs up
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MovingBusySlowQuiet
The M27 is slowest around 16:00, averaging 58 mph against 63 mph when it is clear. Traffic is heaviest around 16:00.
Typical weekday pattern from 5 National Highways roadside sensors along the route, June 2026. Bar height is traffic volume, colour is average speed. Overnight hours carry too little traffic to judge, so they are shown as quiet.
The M27 runs along the south coast linking Southampton, the M3, Eastleigh and Portsmouth. It is a smart motorway for most of its length, and matchday traffic, port freight and the A27 handover at its eastern end all shape its congestion pattern. Live incidents, roadworks and closures refresh every 5 minutes.